+———William MCELROY
              |
          +———Robert MCELROY (16 Mar 1856 Ireland – 16 Jan 1916)
          |
      +———Percy MCELROY
      |   |    
      |   +———Mary Elizabeth “Elizabeth” MORRISON ( – 1946)
      |
  +———Kenneth MCELROY
  |   |    
  |   +———Minnie BAYLISS
  |    
  Kathryn MCELROY 
  |    
  +———Joyce MACKLIN